Card Trivia

This monster appears in the artwork of Barrage Blast and Upgrade. This monster is potentially based on the Schwerer Gustav, one of the biggest artillery pieces ever to have been fielded into battle. This monster could also be based on the Langer Gustav, an even bigger cannon that was never completed due to it being damaged from bombing raids mid-construction. This was the first Rank 10 monster to be released in OCG/TCG.

Rulings

OCG Rulings

Even if the "Superdreadnought Rail Cannon Gustav Max" that activated its effect is flipped face-down or destroyed and sent to the Graveyard, its effect still resolves.: Effect Monster > Superdreadnought Rail Cannon Gustav Max